contaminant

noun

con·​tam·​i·​nant kən-ˈta-mə-nənt How to pronounce contaminant (audio)
Synonyms of contaminantnext
: something that contaminates

Examples of contaminant in a Sentence

a filter to remove contaminants from the drinking water
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
If the contaminants can spread, the soil goes to a site in Emelle, Alabama, as hazardous waste. Taylor O'Connor, Kansas City Star, 27 Apr. 2026 Even in small amounts, these contaminants are enough to hobble normal processes. Tristan Bove, Fortune, 27 Apr. 2026 Traditional treatment systems were not built to remove contaminants like PFAS at such a great scale. Steve Adelstein, The Orlando Sentinel, 25 Apr. 2026 The City’s processes of cleaning and treating our drinking water should have eliminated these contaminants with no detrimental issues for the public. Heidi Finley, Charlotte Observer, 24 Apr. 2026 See All Example Sentences for contaminant

Word History

First Known Use

1922, in the meaning defined above

Time Traveler
The first known use of contaminant was in 1922

Browse Nearby Words

Cite this Entry

“Contaminant.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/contaminant. Accessed 2 May. 2026.

Kids Definition

contaminant

noun
con·​tam·​i·​nant kən-ˈtam-ə-nənt How to pronounce contaminant (audio)
: something that contaminates

Medical Definition

contaminant

noun
con·​tam·​i·​nant kən-ˈtam-ə-nənt How to pronounce contaminant (audio)
: something that contaminates

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